I´m brazilian too and I really like Petduo ..... They rock !!!!!! Pretty fast full on Hard Tek ....... Gonna see them in two weeks, great !!!!!
And about the records : It´s Kiddaz Fm 29 and 36 ( Principios EP and - sorry i don not remember) and they have on Kne´ Deep too ..... There is a sublabel from Kiddaz , called Killaz that has releases from them too !!!!!!

Petduo Rulez ...